Sash-lock.



No. 680,8". Y Patented Aug.' 2o, lam. Ji M. BEES.

- SASH LUCK.

(Application led Oct. 20, 1900.) (No Model.)

A l F191 1HE/ J mm I limiten drames armar rrrcn.

JOHN N. REFS, OF LOUISVILLE, KENTUCKY.

LOCK.

SPECIFICATION forming part of Letters Patent No. 680,81 l, dated August 20, 1901. Application iiled October 20, 1900. Serial No. 33,765. (No model.)

,'o @ZZ whom t may concern:

Beit known that I, JOHN N. BEES, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented a new and useful Sash-Lock, of which the following is a specification.

This invention relates to sash-locks, and has for one object to automatically lock both sashes when they are in their closed positions and at the same time to permit of the independent opening of the sashes from the interior of the building. It is furthermore designed to provide for conveniently applying the present lock to sashes already in position without altering the same beyond setting the lock into one of the side rails of the upper sash.

Another object resides in the provision of means for conveniently throwing the lock out of operation and also to provide for tripping the lock, so as to bring it into operation by the closing movement of the sashes.

With these and other objects in View the present invention consists in the combina 4tion and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacricing any of the advantages of the invention.

In the drawings, Figure 1 is a front elevation of a portion of two window-sashes having the present lock applied thereto. Fig. 2 is a transverse sectional View thereof. Fig. 3 is a similar view showing the lock in its inoperative position. Fig. t is a transverse sectional view showing a modified arrangement of the lock. Fig. 5 is a detail elevation of the opposite side of the swinging latch. Fig. 6 is a detail transverse sectional view taken on the line 6 6 of Fig. 2.

Corresponding parts are designated by like characters of reference in all of the figures of the drawings.

Referring to the drawings, l and 2 designate, respectively, the upperand lower sashes 5o of an ordinary window-frame, said sashes being hung by means of pulley-weights or otherwise, as may be desired.

As shown in Figs. l, 2, and 3 of the drawings, the upper sash has its left-hand side rail provided with a mortise or socket in its front face and located adjacent to the lower or meeting rail thereof for the reception of the casing 3 in the form of a box, having its front edge provided with a longitudinal slot 4;, through which the swinging latch 5 is designed to project and overhang the meetingrail of the lower sash, as indicated in Fig. 2, so as to lock both sashes against movement in opposite directions. This latch is pivotally mounted at its upper end upon an internally-screw-threaded stud 6, which projects laterally from about midway of the length of one side of the lock-casing. The opposite side 7 of the casing is removable and is held in place by means of a screw-fastening 8, which passes through said side and into the internally-screw-threaded stud, whereby the latch is also prevented from being displaced from its pivotal support. One face of the latch is provided with a socket or recess surrounding its pivotal support and is designed for the reception of a coiled spring 9, the inner end of which is secured in a transverse slit or groove formed across the outer end of the stud 6, as indicated at l0, and its opposite end being secured to a pin l1, projecting from the back of the recess, whereby the latch is provided with a spring tension to normally hold the same in a pendent position.

It will be observed that the lower free end of the latch normally projects outwardly through the slot in the casing and rests against a stop pin or shoulder 12, projecting from the iixed side of the casing. To hold the latch against accidental outward and upward movement, there is provided a pivotal catch 13, mounted upon the inner side of the casing and having its free end arranged beneath the free end of the latch and provided with a suitable catch-head 14..- to engage a shoulder or projection 15, formed ifpon the lower end of the latch, preferably by means ofa recess. A suitable spring 16 is interposed between the back of the catch or de tent to yieldingly hold it in engagement with the latch.

In order that the latch may be conveniently freed from the catch or detent, there is provided a trip-pin 17, which works diagonally across the latch and in a slot formed therethrough and opening into the recess, whereby the projection 15 is formed, so that by forcing the pin downwardly it will push the detent out of engagement with the latch, wherebythe latter is freed and may be swung vertically out ot the path of the lower sash to permit of the latter being raised. This trippin is provided with an intermediate slot or notch 18 for the reception of a transverse stop-pin 19, carried by the latch, so that the ends ofthe slot or notch may engage the pin,

and thereby prevent endwise displacement of the trip-pin.

A suitable operating-head 20 is provided for the outer end of the trippin, said head being beveled upon its outer side, so as to lie flush with the outer edge of the latch, the latter being provided with an angular notch 21 for the reception ofthe head 2O and is slightly longer than the latter, so as to provide for the movement of the pin. tVhen the latch is freed from the detent, it is swung upwardly andinto the interior of the casing, as shown in Fig. 3, in which position it is held by means of a bowed spring 22, eX- tending transversely across the upper end of the casing and designed to frictionally bear against the inclined end of the latch, and

thereby hold the latter against the tension of the coiled spring. In this inoperative position of the latch the upper and lower sashes may be opened without interference by the latch.

To automatically trip the latch andy swing it into its operative position, there is provided a rocking cam-shaped trip 23, as best shown in Fig. 5, which is mounted upon that side of the latch which is opposite the coiled spring. The upper rounded end of the latch is reduced upon the cam side thereof, so that the-trip may lie flush with the face of the latch, the recess thus formed having a transverse shoulder 24, extending inwardly from.

the front edge of the latch, and a diagonal shoulder 25, inclining from the inner end. of the transverse shoulder toward the inner lower corner of the latch. The cam-trip has its upper edge rounded to correspond to the latch,vwliiie its lower edge is straight, so as to bear against the transverse shoulder 2,1, and thereby interlock the latch and the trip. 1t will be understood that the trip is provided withan opening 26, whereby it is mounted upon the stud 6, and its longest portion projects outwardly through the opening in the casing, so as to lie in the path of the meeting-rail of the lower sash. A leaf-spring 27 is interposed between the straight inner edge ofthe tripand the inclined shoulder, so as to yieldiugiy hold the cam in its extended position. By reason of the inclined wall 25 the recess is enlarged, so that the trip may be swung inwardly, as indicated by dotted lines, so that the rear edge may be free from projections.

From the foregoing description it will be apparent that when the latch is thrown upwardly into its inoperative position the lower sash may be freely raised; as its meeting-rail will strike the rounded or inclined edge of the trip, and thereby force it inwardly into its recess, after which the trip will spring outwardly again under the iniiuence of the spring 27. When the sash is lowered, the meeting-rail will strike the straight edge of the trip, thereby forcing the opposite end of said edge against the transverse shoulder 24, whereby the trip and the latch are interlocked, and as the sash is lowered the latch will be drawn out of engagement with the spring 22 and finally thrown downwardly into its operative position by means of the coiled spring. It is preferable to provide the upper side of the meeting-rail of the lower sash with a wear-plate 28 to project at the inner edge of the rail and engage the rocking trip of the lock and to strike against the latch in its locked position, so as to prevent l the Wooden rail from being worn and damaged. As shown in Fig. 3, the plate rests upon a Weather-strip 29, and the latter is cut away or provided with a notch to accommodate the projecting portion of the trip-cam.

When the sashes are locked and it is desire to unlock the same, it is merely necessary to press downwardly upon the head of r the trip-pin 17, so as to disengage the detent, Vwhereby the latch is free to be swung upwardly to the position shown in Fig. 3 of the drawings.

The form of the lock just described is designed for application to sashes in the manufacture thereof, as the mortises can then be conveniently formed, and the case has the opposite terminal attaching-ears 29 located at the front of the casing, so as to be secured to the outer side of the sash-rail. In order to accommodate the lock to sashes already mounted in. their frames, the attaching-ears are placed upon the fixed side of the casing, as shown in Fig. 4, whereby the lock may be secured to the inner edge of a side rail adjacent to the pane of glass, the other parts of the device being precisely the same as hereinbefore described.

What is claimed is- 1. The combination with opposite windowsashes, of asash-lock carried by one of the sashes, and provided with a locking member, which has opposite operative and inoperative posit-ions, and means for automatically tripping the movable locking member from its inoperative position toits operative position by contact of said means with the other sash, said means being carried solely by the movable locking member and arranged in the path of the closing movement of the said ,other sash when the movable locking mem- IZO tically yieldable in the opposite direction, whereby the said other sash may be opened withoutinterfering with the locking member.

2. A sash-lock, comprising a verticallyswinging latch, which has its locked position at its lowermost limit, and its unlocked position at its uppermost limit, means for detachably holding the latch in its unlocked position, an upwardly and inwardly elastically yieldable sash-engaging trip pivoted to the latch and projected laterally therefrom, and means for locking the trip against independent movement downwardly upon the latch.

3. A lock, comprising a movable locking member, which has its locked and unlocked positions at the opposite limits of its movement, an elastically-yieldable trip pivoted to the latch, and having its outer free end projected laterally beyond the front side thereof in the unlocked position only of the latch, and a stop-shoulder carried by the latch, located between the inner end of the pivotal trip and the free end of the latch, and normally in engagement with said inner end of the trip, whereby the latter is locked against independent motion in one direction and is free to yield in the opposite direction.

4. Asash-lock,comprisingaswinginglatch, which has its locked and unlocked positions at its opposite limits, and swings through an arc of substantially one hundred and eighty degrees, one end of the latch having a pivotal support, and its opposite free extremity forming the sash-engaging locking part, and a sash-engaging trip pivotally mounted upon the latch intermediate of its ends, said trip being elastically yieldable inwardly and toward the free end of the latch, and interlocked with the latch against independent movement thereon in the opposite direction.

5. ln a sash-lock, the combination with a casing having a longitudinal slot in its outer side, of a swinginglatch havingits inner end pivoted within the casing and substantially midway between its opposite ends, and having a swing through the slot into the opposite end portions of the casing, the locked and unlocked positions of the latch being at opposite limits thereof, the free end of the latch being projected laterally outward through the slot in the locked position thereof, and lying wholly within the casing in its unlocked position, and a sash-engaging trip pivoted upon the latch and normally projected at one side thereof, said trip being elastically yieldable toward the free end of the latch, and interlocked with the latch against independent movement in the opposite direction, the tri-p being projected laterally outward through the slot of the casing in the unlocked position of the trip, and located between the latch and the back of the casing in the locked position of the latch.

6. A sash-lock,comprising a swinging latch, a pivotal support therefor, said latch having one side recessed about the pivotal support, the inner wall of the recess having a transverse stop-shoulder portion and an outwardlyinclined portion, a trip received within the recess and pivotally mounted upon the pivotal support of the latch, one end of the trip being in engagement with the stop-shoulder in the inoperative position of the latch, and its opposite free end projecting laterally beyond the edge of the latch, and a spring interposed between the -free portion of the trip and the inclined shoulder.

7. Asash-lock,comprisingaswinginglatch, a detachable latch-holdin g device at the operative limit of the latch, means for disengaging the same, a detachable latch-holding device at the opposite inoperative limit of the latch, and a window-sash-engaging trip carried by the latch and projected into operative position only when the latch is in its inoperative position.

8. In a lock, a movable locking member, a holding device therefor, which is mounted independently of the part to be locked and engaged withthe locking member in its locked position only, and means for disengaging the holding device from the locking member, and carried solely by the latter.

9. Asash-lock, comprisingaswinginglatch, having a notch in its free end, and an openended slot opening into said notch, a pivotal latch-holding detent for engagement with the notch, and a slidable pin working in the slot, one end of the pin extending into the notch, and the opposite end having` an operatinghead or linger-piece.

l0. ln a sash-lock, the combination with a casing, having a longitudinal slot or opening, of a swinging latch having one end pivoted intermediate of the ends of the casing, a notch in its free end, and a diagonal slot opening at one end through the outer edge of the latch and at the opposite end into the notch, a latch-holding detent pivoted within the casing and normally in engagement with the notch, and a longitudinally-slidable detent-disengaging pin working in the slot, and having its outer end provided with a fingerpiece received within a recess formed in the outer edge of the latch.

ll. In a sash-lock, the combination with a casing, of a longitudinally-swinging latch pivoted intermediate ot' the ends of the casing, a spring-actuated latch-holding detent Vat one end of the casing, a slidable detentdisengaging device mounted upon the latch, and having an exposed ringer-piece, and a yieldable latch-holding device mounted at the opposite end of the casing.

12. In a sash-lock, the combination with a casing, having an intermediate pivot-stud, of a swinging latch mounted upon said stud, and provided in opposite sides with recesses surrounding the stud, a coiled spring received in one of the recesses and connected at opposite ends to the stud and the latch, a trip received within the other recess and pivotally mounted upon the stud, one wall of the recess forming a stop-shoulder in engage- IOO 'IIO

ment With one end of the trip, a spring inter- In testimony that I claim the foregoing as' posed between the opposite end of the trip my own I have hereto afxedmy signature in and the adjacent Wall of the recess, a latehthe presence of two Witnesses.

holding device at one end of the casing, JOHN N. BEES. 5 means for disengaging the detent Carried by IVitnesses:

the lateh,and detachable latch-holding means JAMES J. FITZGERALD,

at the opposite end of the easing. JOHN I. BUSHA'W. 

